Diversified Management Services, Inc. celebrates 25 Years in Business
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Diversified Management Services Inc. wishes to convey our sincerest gratitude to our clients for their unwavering support as we celebrate ...

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Forensic Accounting
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Forensic accounting is a science dealing with the application of accounting facts gathered through auditing methods and procedures to resolve ...

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Bookkeeping
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Payroll administration is more than just writing a paycheck. It involves knowing: what to withhold how much to withhold which ...

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Our Value Proposition

Diversified Management Services, Inc. (DMS) offers bookkeeping, accounting, payroll, QuickBooks® training, business planning and development, and forensic accounting to small businesses in Southeastern Wisconsin. We work exclusively with QuickBooks® desktop accounting software and QuickBooks online.

We deliver financial peace of mind for hard-working business owners. Our strengths are the individual attention we provide and the services we customize specifically to meet your needs.

DMS does more than just crunch numbers. We develop systems and procedures to successfully record and manage the cash flow of your business. We have a historical track record of developing budgets and bringing local businesses back into profitability through the tough economic market.

Contact us today to see how we can help you. Your first consultation is always FREE. And don’t be afraid to ask for references; our clients will be more than happy to talk to you about the work we do for them.

Some of our Customers

Testimonials

We would highly recommend! We have been very satisfied clients for 20 years!

We have been clients for 20 years and have been extremely satisfied with all of the services we have received, over all of these years. Theresa is highly knowledgeable and very trained in her craft. She takes care of what… Read more “We would highly recommend! We have been very satisfied clients for 20 years!”

April Chaudoir
Acupuncture & Holistic Health Associates

A much needed service for a small one person (Owned) business…!

Diversified Management Services, Inc ( Theresa Schwager) has been working with me to keep my quick books clean and up to date since 2009. Theresa spent several days training me on how to use Quick Books early in my start… Read more “A much needed service for a small one person (Owned) business…!”

Steven DeMore
DeMore’s Innovative Design,Inc

Testimonial Regarding Financial Services

I would like to share my full endorsement of Theresa Schwager and her company, Diversified Management Services. Ms. Schwager has been performing our accounting services for the past 17 years. We have a rather complex business structure with both contractors… Read more “Testimonial Regarding Financial Services”

Maurice Dumit, MPT
INVIVO Wellness

Theresa is extremely knowledgeable in accounting

I just wanted to say that working with Theresa has been nothing short of phenomenal…She really has extreme expertise with accounting principles and the quickbooks software. When I first came to her, I was very unorganized and scattered with multiple… Read more “Theresa is extremely knowledgeable in accounting”

Nick Ruiz
Smart Home Solutions LLC

We have a “well-oiled machine” now

We were referred to Diversified by an accounting firm initially for training us on Quick Books and to set up all the accounts we needed to begin using it for everything. Helping us start from scratch, Theresa was calm, patient,… Read more “We have a “well-oiled machine” now”

Madelene Smith
IHA, Inc.

As a business owner who has experienced the expertise of Theresa Schwager owner of Diversified Management Services, I would highly recommend anyone who is either starting a business or wants to expand the potential of their current business to consult… Read more “”

Brian Schwager

My wife and me have been working with DMS for over 10 years. They are great for small businesses. Highly recommend.

Robert Marsh